Home / 27,866.19-38,454.83-15,766.55

Finding the Fourth Proportional to 27,866.19, 38,454.83 and 15,766.55

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Solution

The fourth proportional to 27,866.19, 38,454.83 and 15,766.55 is: 21,757.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,866.19 : 38,454.83 = 15,766.55 : x
  2. Step 2: Convert to fraction form
    27,866.19/38,454.83 = 15,766.55/x
  3. Step 3: Cross multiply
    27,866.19x = 38,454.83 × 15,766.55
  4. Step 4: Simplify right side
    27,866.19x = 606,299,807.66
  5. Step 5: Solve for x
    x = 606,299,807.66/27,866.19
  6. Step 6: Final answer
    x = 21,757.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.